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- 1. Multiple Choice
Which of the following is one of the five ways an object's motion can change:
hit something
bounce off something
Speed Up
fly off the table
- 2. Multiple Choice
In order for an object to speed up, the direction of the force is:
in any direction
in the same direction as the object's motion
in the opposite direction of the object's motion
- 3. Multiple Choice
In order for an object to start moving, the force must come from
the same direction as the object's motion
the opposite direction as the object's motion
any direction
- 4. Multiple Choice
In order for an object to stop moving, the force must come from
the same direction as the object's motion
the opposite direction as the object's motion
any direction.
- 5. Multiple Choice
Complete the sentence to match your observations: When you exert a stronger force on an object, you will see ________ change in velocity as compared to exerting a weaker force on the same object.
a greater
a weaker
the same
- 6. Multiple Choice
A push or pull that can cause motion.
velocity
speed
cause
force
- 7. Multiple Choice
Speed in a particular direction
force
velocity
motion
- 8. Multiple Choice
To apply a force
exert
exit
bounce
- 9. Multiple Choice
Three toy boats with the same mass were in a lake. Two boats were moving and one was stopped. Each boat got bumped by another boat, but not in the same direction. All the boats changed speed as a result of being bumped. Use the information in the diagram to answer.Which toy boat experienced the strongest force when it was bumped? How do you know?
The gray toy boat experienced the strongest force because it had the fastest ending speed.
The orange and gray toy boats experienced the strongest forces because they both gained the same force as they sped up. The blue boat lost force, so it slowed down.
All three toy boats experienced the same strength force because they changed speed by the same amount.
The blue toy boat experienced the strongest force because it takes a stronger force to slow something down than it takes to speed something up.
- 10. Multiple Choice
Three chairs were rolling across a flat office floor. The blue and red chairs are the same mass, and they have more mass than the yellow chair. Each chair was hit by another chair, but not from the same direction. Use the information in the diagram to answer.Which chair(s) experienced the strongest force when hit? How do you know?
The blue and red chairs experienced the strongest force because they are both more massive than the yellow chair and they changed speed by the same amount.
The red chair experienced the strongest force because it is as massive as the blue chair and has the highest ending speed.
All three chairs experienced the same force because they changed speed by the same amount.
The blue chair experienced the strongest force because it takes more force to slow an object than it takes to make it go faster.
- 11. Multiple Choice
Scott and James work at a grocery store. After the grocery store closed, they were playing a game with a shopping cart and Scott’s skateboard. They crashed the skateboard and the shopping cart two times. The shopping cart had more mass in Crash 2 than it did in Crash 1. Use the information in the diagram to answer.In which crash did the skateboard experience the stronger force? Why?
The skateboard did not experience a force; only the shopping cart experienced a force in the crashes.
Crash 2; the force on the cart was stronger in this crash, so the force on the skateboard was also stronger.
The diagram doesn’t tell you anything about the force on the skateboard. It only gives information about the force on the shopping cart.
The skateboard experienced the same force in both crashes. The shopping cart changed speed by the same amount in each crash, so the force on the skateboard was the same each time.
- 12. Multiple Choice
At dinner, Hans passed the salt shaker to his sister Jessica by sliding it across the wooden table. The salt shaker gradually slowed down and stopped after moving 12 centimeters.Why did the salt shaker stop moving?
The salt shaker ran out of force.
The table exerts a force that is opposite to the salt shaker's motion.
The table absorbs force from the salt shaker.
All objects stop moving because their natural state is to be still.
- 13. Multiple Choice
Scientists created models that show a rocky asteroid crashing into a moon (less mass) and a planet (more mass). In both crashes, the asteroid was the same mass. Scientists want to know what will happen to the asteroid. Use the information in the diagram to answer.In which crash did the asteroid experience the stronger force? How do you know?
Crash 2; the force on the planet was stronger in this crash, so the force on the asteroid will also be stronger.
There was no force on the asteroid. Only the moon and planet experienced a force in each crash.
The diagram doesn’t tell you anything about the force on the asteroid. It only gives information about the force on the planet and the moon.
The force was the same in both crashes. The planet and moon changed speed by the same amount so that means the force on the asteroid was the same in both crashes.
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